Home / 666,648.72-1,000,071.42-193,272.57

Finding the Fourth Proportional to 666,648.72, 1,000,071.42 and 193,272.57

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Solution

The fourth proportional to 666,648.72, 1,000,071.42 and 193,272.57 is: 289,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,648.72 : 1,000,071.42 = 193,272.57 : x
  2. Step 2: Convert to fraction form
    666,648.72/1,000,071.42 = 193,272.57/x
  3. Step 3: Cross multiply
    666,648.72x = 1,000,071.42 × 193,272.57
  4. Step 4: Simplify right side
    666,648.72x = 193,286,373,526.95
  5. Step 5: Solve for x
    x = 193,286,373,526.95/666,648.72
  6. Step 6: Final answer
    x = 289,937.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.